Educational apparatus



L. FERRARI.

EDUCATIONAL APPARATUS.

APPLICATION FILED JUNE 9.1919.

1,384,801, PatentedJuly 19,1921.

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EDUCATIONAL APPARATUS.

APPLICATION FILED JUNE 9, 1919.

3 SHEETS-SHEET 2.

Patented July 19, 1921.

L. FERRARI.

EDUCATIONAL APPARATUS. APPLICATION FILED JUNE 9,'1919.

1,384,801 Patented July 19, 1921.

3 SHEETS-SHEET 3.

lmifmf PATENT OFFICE.

LORENZO FERRAnLpOr OAKLAND, CALIFORNIA.

EDUCATIONAL APPARATUS.

Specification of Letters Patent. Patented July 19, 1921,

Application led June 9, 1919. Seria1 No. 302,715'.

To all whom t may concern Be it known that I, LORENZOFERRARI, -ofOakland, California, have inventedv certain new and useful ImprovementsinY Educational Apparatus, whereof the following is specification. l

This invention relates to Veducational apparatus, andfs in the nature ofan orrery, and designed to explain the motions of the earth and moon inspace. l

In carrying out they invention I make use of the following mechanism. Iconstruct a globe to illustrate the earth, which may have maps markedthereon to exhibit the land and water systems of the same. rllhis globeis mounted to rotate about its axis, and is provided with a second,smaller, sphere, to represent the moon, and arranged to revolve aboutthe earth-globe. The system thus arranged, is mounted to be givensuccessive various inclinations to represent the various inclinations ofthe earths axis to the radius vector, or line connectingit with the sun,to illustrate how the. suns light strikes the Yearth and moon in theirdifferent phases.

The motions above mentioned are given by means of mechanism which willbe fully described hereinafter, in connection with the drawings heretoattached in which, in three sheets I have illustrated my invention andin which;

Figure 1 is an elevation of the apparatus, showing` the earth and itssupports and the mechanism i'or Operating it, and the moon and mechanismfor supporting it and rotating it about the earth. 1

Fig. 9. is a detail view, a section taken on the line c, a, of Fig. 1.

Fig. 3 is a detail, a partial section taken on the line b, of Fig. 2.

Fig. 4 is a sectional eleva-tion taken on line c of Fig. 1 showing thehollow trunnion and the arbor extending therethrough.

Fig. 5 is a view of the mechanism for rotating the moon aboutthe earth.I

Fig. 6 is a section taken at the line (Z, ci, ot Fig. 5.

Fig. 7 is a partial section of the moon rotating devices.

Fig. 8 is a view of the globe which represents the earth, showing atransparent shell in section and a ball in elevation therein.

Fig. 9 is a sectional elevation taken on the line e, e, oi Fig. 1.

In these figures;-

The globe 1, which represents the earth, may be made in two Or moreparts, as shown more particularly in Fig. 8, and may be made of glass orother transparent material A, having within it a ball B with maps orother l,markings thereon. This globe is mounted on the axis 2., whichrepresents the axis of the earth. The axis 2 is supported in a framecomposed of side pieces 3 and end pieces 4, which frame is adapted torock or oscillate on trunnions 5 mounted in standards 6.

A bracket 7, attached to one of the standards 6, and a bracket Sattached to asubsidiary standard 9, near the opposite end of the frame,support a ring 10, which is concentric with the earth-globe 1, andbetween the side pieces 3 ot the frame. This ring 10, by means ofbracket pieces 11, supports an inner concentric ring 12 of channelcrosssection. `Within the channel of ring 12 are a series ofantifriction rollers 13, upon which rides a ring 14, which has a groove15 in its outer periphery, said groove being for the purpose ofreceiving a belt 16, to give motion to the said ring. A bracket 17attached to ring 14 and extending inward, carries at its inner end asphere 18, which represents the moon, and which is revolved about theearth 1 by the movement of the ring 14.

A driving pulley 19, is mounted on an Varbor 2O which extends throughone oi the standards 6 and through one of the end pieces l, through thehollow trunnion thereof and is journaled at its end in the standard 9 asshownparticularly in Fig. el. Upon this arbor is mounted a bevel pinion21 and a sprocket pinion 22. The bevel pinion 21 enmeshes a similarpinion 23, connected to a sprocket pinion 24 by a shaft 25, which may bejournaled in the adjacent side piece 3. The sprocket 24, by means of achain drives a sprocket wheel 27 upon the earthaxis 2 as shown in Fig.1, and thus rotates the earth.

The sprocket wheel 22, by means of a chain 2S, drives a sprocket wheelQ9, and a. shaft 30, to which it is attached. This shaft 80, isjournaled in the standards 6 and 9, and drives a system of gearing,shown more particularly in Fig. 9, which includes a crank wheel 31. Thewrist pin 32, of the crank wheel 31, is connected by a pitman 33 Vto tothe contiguous end piece i of the earth supporting frame, so as tooseillate the latter. Upon its free end the shaft 30 carries one memberof a Crear system whichV gives rotation to a chain Wheel 34, which', vbymeans of a chain or belt 35 gives motion to belt pulley 36, and in turnto the belt 16, by which the moon is revolved. For` this purpose theWheel 34 may be mountedon a short shaft 37 supported by brackets 38, andthe belt pulley 3G similarly mounted on a shaft 39 in a pair of brackets40.- Both said pairsot brackets are attached tosta/ndard 9.

Having thus described my invention, and

` an embodiment ofv it, in the ulhclear and exact terms required by law,and knowing that it comprises novel, usefuliand valuable improvements inthe art to which it pertains,

I here statey that I' do not Wish to be limited to the preciseconstructionand arrangement of the several parts, as herein setV forth,as

ring rotatably mounted around' said globe, ar sphere mounted on saidring and adapted to be revolved thereby about said globe, and means forgiving said'motions to said inembers.

2. An orrery comprising a frame supported by standards andadapted tooscillate, means-for oscillating Vsaid frame,- aV globe rotatablymounted in said frame, means for rotating vsaid f glolie7 a. stationaryring con-l centric `withv said globe, a rotatable` ring mounted'on saidstationary ring, means for l'rotating said rotatable ring, and aV spheresupported by saidl rotatable ring contiguous to said globe.

3. An orreryvcomprising a globe mounted in an oblong fra-me and adaptedto rotatel therein, said frame having trunnions on its ends journaled instandards, one of said trunnions being'holloiv, an arbor extendingthrough said hollow trunnion and having driving means atl its outer end,and gearing at its'inner end adapted to rotate saidglobe,y

Vsaid rotatable ring and 'means for rota-ting said rotatable ring.

5. Ain orrery comprising an oscillating frame, av globe mounted in saidframe and adapted to rotate therein, inner and outer stationary ri-ngsconcentric with said. globe,

a rotatable ring mounted upon said. inner V ring, al sphere carried bysaid `rotatable ring,`

means for rotating said rotatable ring and means for oscillating saidframe..V

6. An orrery comprising oscillating frame mounted upon standards, aglobe mounted upon said trame and adapted. to rotate therein, inner andouter stationary rings concentric with said globe, secured to saidstandards,y a rotatable ring mounted uponv saidinner ring, a spherecarried by said rotatable ring, combined` means. torre volving saidrotatable ring and oscillating said trame.

7. An orrery comprising a frame supported by standards, a globerotatably mounted in said frame, means for rotating said globe, innerand outer stationary rings.v

mounted upon said standards, a. rotatable ring mounted between saidstationary rings carrying a sphere and means mounted upon said standardsadapted to rotate said rotatable ring.

8. An orrery comprising a movable frame supported by standards, a globerotatably mounted in saidf frame, aV stationaryv ring secured to` saidstandards, a rotatable ring mountedV on said' stationary ring,antilrictional rollers betweenr said rings, af sphere supportedbysafidfrotatable ring, means for movingfsaidframe, means for' rotatingsaid globe and means for rotating said rotatable ring. .i In testimonyhave hereto: set my hand inthe presence. of two Witnesses this 2nddav'ofJ une, 1919;

LORENZO' FERRARI. Witnesses S. Barns,

RIJ-.Worm i.

that lr claim the foregoing l

